Please help me with this problem !!!!!!
1 answer:
Answer:
see explanation
Step-by-step explanation:
Given
s(t) = 10t²
To find s(2) and s(5) substitute t = 2 and t = 5 into f(t)
(a)
s(2) = 10 × 2² = 10 × 4 = 40
s(5) = 10 × 5² = 10 × 25 = 250
(b)
s(5) - s(2) = 250 - 40 = 210
This represents the distance travelled in 3 hours
(c)
The average rate of change is measured as
=
=
= 70 miles per hour
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Answer:
4 + 4
+
Step-by-step explanation:
Using the rule of exponents
×
⇔
Given
(2 +
) = (2
+
)(2
+
)
Each term in the second factor is multiplied by each term in the first factor, that is
2 (2
+
) +
(2
+
) ← distribute both parenthesis
= 4 +2
+ 2
+
← collect like terms
= 4 + 4
+